Gasket for internal-combustion engines



oct. zo, 1925. 1,557,775 v' W. ROBERTSON I GASKET FOR INTERNAL COMBUSTION ENGINES File eb. 5,. 1925 Q 05d@ @i Q Gef@ /lVlE/vTo/,

Patented Oct. 20, 1925.

UNITED STATES WILLIAM ROBERTSON, or CAMBUSLANG, SCOTLAND.

GASKET ron INT'EENAL-coMBusTIoN ENGINES.

Appucaaon med February 4, 1925.Y serial No. 6,849.

1/ '0 all whom it may conce/1%.'

Be it known that I, IVILLIAM ROBERTSON, a subject of they King ofGreat Britain and Ireland and the Isle of Man, vanda resident invented new` and useful Gaskets for Internal-Combustion .Engines, of which the following is a specification.

This invention. has reference to improvements in and relating to gaskets forinternal combustion engines and the like.` e

In certain types of internal combustion engines particularly for use in motor carsV and the like, difficulty is experienced in fitting the Vinlet and exhaust manifold to the v cylinder with the gasket packing properly sandwiched in position. Various forms'of gaskets have been designed to overcome this difliculty and those forms usually have lconsisted in forming the gasket sectional but it has been'found in practice that it is diflicult to retain the sectional gaskets properly in.

position till the manifold is fitted with the result that considerable time is occupied in fitting'the manifold to the cylinder.

The object of this invention is to construct the gasket cheaply and' simply so that-.the manifold may be .fitted to the cylinder speedily and properly with a minimum amount of trouble. According to this invention the gasket comprises two metallic plates (preferably copper plates) secured together with a sheet of asbestos or the like sandwiched between same and provided with openings corresponding to the ports of the cylinder and manifold. These openings are formed with projecting cylindrical tapered flanges so that the fitting of Vthe gasket is greatly facilitated. l

In order that my said invention and the manner of carrying the same into effect or practice may be properly understood I have hereunto appended one sheet of explanatory drawings in which Figure 1 is an elevation and Figure 2 is a plan View of a gasket for internal combustion engines constructed according to this invention. Figures 3, et and 5 are sections taken respectively on the lines 3 3, 4 4, and 5 5, in Figure 2.

Figure 6 is a plan view of a slightly modified construction of gasketrand Figures 7 8 and 9 are sections taken respectively, on the` lines 7 7, 8-8, and 9-9 in Figure 6.

Figures 53, 4, 5, 7, 8, and 9 are shown enlarged so as to render same more clear.

f, IReferring to these drawings ,f of Cambuslang, Lanarkshire, Scotland,havey kpractice and as illustrated by Figures `l to 5V Figures 10, 1l, and l2'comprise plan views of three vfurther modified constructions of gaskets.

In carrying this invention into. effector the` gasket comprises two rmetallic, preferably copper plates aand b which are secured togetherwith a sheet of asbestos or the y the manifold may be passedptheseffholes al,

being spaced apart so that the bolts or studs register with same. The two plates a and I) are secured together with the packing c sandwiched between them by means of a fiangee formed on ythe platea all round same, bent over vand clenched to the'outer surface of the other plate Z).

The plate b and the asbestos packing c are pierced with holes or ports preferably six IholeS spaced apart, sothatl they register with the ports of the cylinder and manifold. lThe plate a is also pierced with holes the centers of which are the same as thecenters of the holes in the plate b and asbestos packing c but these holes vin the plate a are smaller-in diameter than the holes in the plate L and the asbestos packing c. The metal of the plate ay surrounding the holes is bent at approximately or nearly right angles through the holes in the plate and the asbestos packing c and forms a wall or flange f which isupstanding or projecting beyond` the outer surface of the plate Z2 and is within the holes in thesaid plate and asbestos packing.

The wall f is of tapered formation, that is, thev diameter of the projecting end of the wall f would be slightly less than the diameter at the other end of the wall;

The fitting of this gasket is greatly facilitated by means of this projecting tapered wall f which would fit into the ports in the manifold and allow sufficient movement-and adjustment to enable the manifold to be fitted with little trouble. r e

According to the slightly modified arrangement illustrated by Figures 6 to 9 the flange c instead of extending all round the plate a. is provided at the ends of the plate c only and is bent over and. clenched to the outer surface of the plate b while eyelets or the like g are fitted into the bolt -holes d and clenched so that the )lates a and o with the packing sandwichec between same are secured together iirrnly.

The modification illustrated by Figure is similar in construction to that illustrated by `Figures l to 5 but in this case the gasket is formed in two parts each ot' which Compriscs two bolt holes (Z and three holes with the l'nojecting walls f.

The modification illustrated by Figure 11 isy also similar in construction to that illustrated by Figures l'to 5 but in thisy case the gasket is formed in three parts each of which is provided with two holes with the wallsV f.L Two of theser parts-have one bolt hole Z each and the other part has two bolt holes cl.

LIt' desiredl and as illustrated by Figure( 12 the side edges 7L Vof the gasket` may be curved inwardly between the ports or holes provided with the walls f so that the shape or configuration is such that there is a saving in the amount of material used.

I claim l. A gasket for internal combustion engines comprising a pair of metallic plates and a sheet of packing material sandwiched therebetween, .said plates and packing having aligning openings therein, of truncated conical shaped flanges formed with one or' said plates and projecting snugly through the openings of said packing and of the 4other' said plate, substantially as and for the purpose specified.

2. A gasket or the character described comprising an outer plate' having openings therein, flanges formed with said'plate and encircling said openings, an inner plate, a sheet o1u packing retained between said plates, said inner plate and packing having `aligning openings therein adapted to register wit-h and of greater diameter than the Openings of said outer plate, and said langes projecting snugly through the openings within said inner plate and packing.

3. A gasket for internal combustion en` gines comprising V.can outer plate having openings therein adapted to register with all of the ports `of the engine, a flange for each opening having tapered formation and projecting at substantiallyV right angles to said plate whereby they may be seated within the ports of the engine, an inner plate, a sheet of packing arranged between. said plates, said linner plate and packing having openings therein for the snugreception ot said flanges, and means forclampingly connecting said plates together.

4. A gasket lfor internal combustion engines `comprising an outer platehaving a series of openings formed therein, annular tapering flanges formed integral with said plate adjacent said openings, a packing received upon said outer plate, an innerl ,plate engagedover said packing, the marginal portions kof said outer plate being extended beyond the marginal portions of said inner plate and curved upon themselves and clampingly engaged over the adjacent marginal portions of such inner plate whereby to compress the same upon the packing, the inner plate and* sheet of. packing having openings therein for snugly receiving the eX- tended portions ot' the annular tapering flanges therethrough, and means engaged in the intermediate portions of the Vseveral plates for further clampingly engaging the same upon the sheet of packing.

WILLIAM ROBERTSON. 

